deletions | additions       diff --git a/untitled.tex b/untitled.tex  index 9ee0281..40893ca 100644  --- a/untitled.tex  +++ b/untitled.tex 
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\begin{lstlisting}  \text{}  \end{lstlisting}  It becomes ``{\~}{\%}", ``\textbackslash\%",  i.e., I cannot get rid of the anti-backlash!